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Finding the Fourth Proportional to 251,481.68, 376,988.16 and 172,633.04

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Solution

The fourth proportional to 251,481.68, 376,988.16 and 172,633.04 is: 258,788.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,481.68 : 376,988.16 = 172,633.04 : x
  2. Step 2: Convert to fraction form
    251,481.68/376,988.16 = 172,633.04/x
  3. Step 3: Cross multiply
    251,481.68x = 376,988.16 × 172,633.04
  4. Step 4: Simplify right side
    251,481.68x = 65,080,612,104.81
  5. Step 5: Solve for x
    x = 65,080,612,104.81/251,481.68
  6. Step 6: Final answer
    x = 258,788.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.